Update README to link docs and update install instructions (#180) #695

Job	Run time
feature-checks	2m 54s
clippy	51s
doctest	1m 1s
docs	31s
fmt	11s
test stable (ubuntu-latest)	1m 12s
test stable --all-features (ubuntu-latest)	2m 19s
test 1.70 (ubuntu-latest)	37s
test stable (macos-latest)	1m 17s
test stable --all-features (macos-latest)	2m 59s
test 1.70 (macos-latest)	43s
test stable (windows-latest)	3m 14s
test stable --all-features (windows-latest)	4m 19s
test 1.70 (windows-latest)	1m 56s
	24m 4s

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